The dongle its the one saves your life from bricking your ps3, normally for E3 Flasher bricking is for the people that don't use the dongle i have a friend that didn't use the dongle, his console is bricked... its very important to use the dongle, actually if your ps3 brick the dongle can unbrick it you can buy one online if you forgot to buy it

ahh and yeah when you are opening your ps3 and you put the NOR FLASHER into his place be aware of hearing a sound of ¨clip¨
usually the flasher bricking is for that step. I already do all the steps be aware of everything you quit and memorize all what you quit beacuse when you need to close you need to put everything on his place.